20668839 is an odd 8-digits composite number following 20668838
and preceding 20668840 . In scientific notation, it is written as 2.0668839 × 10^7.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 13779224 positive integers (up to 20668839) that are relatively prime to 20668839.
20668839 has 4 divisors, whose sum is 27558456
The reverse of 20668839 is 93886602
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred sixty-eight thousand eight hundred thirty-nine
Scientific notation
2.0668839 × 10^7
Engineering notation
2.0668839 × 10^6
Prime Factorization
3 × 6889613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20668839
Product of the distinct prime numbers
The prime factorization of 20668839 is 3 × 6889613.
Since it has a total of 2 prime factors.
6 , 9 , 68 , 80 , 645 , 355 , 5518 , 192 , 14195 , 51038 , 292008 , 104325 , 9136257 , 8906542 , 76001344 , 67218089 , 596393518 , 838245842 , 1874382757 , 8697077717
n×2
41337678
n×3
62006517
n×4
82675356
n×5
103344195
n÷2
10334419.5
n÷3
6889613
n÷3
5167209.75
n÷5
4133767.8
n2
427200905607921
n3
8.8297467386643E+21
n4
1.8250061375223E+29
n5
3.772075803046E+36
2 √n
4546.2994841959
3 √n
274.43449188461
4 √n
67.426252188565
5 √n
29.044453985261
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20668838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20668839 can be divided by 4 positive divisors.
The sum of these divisors (counting 20668839) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110110110000110100111
3
Ternary
1102220002022120
4
Quaternary
1032312012213
5
Quinary
20242400324
6
Senary
2015001023
8
Octal
116660647
10
Decimal
20668839
12
Duodecimal
6b09173
16
Hexadecimal
13b61a7
20
Vigesimal
693c1j
36
Base36
cb06f
md5
4d9b6f3d0cf418a4087e3b1e919cf277
sha1
3cd7a50a39796003c36e98ec7b5d3693f8cb43ef
sha256
e66be4fdb5dd66bb740f86759b464f5eaf4562f703fdb061d2ba6500f210eab9
sha512
62a5a4d9816e36a43369fe7f0cff8256830a54af4f91f8bd348677622f743ef403de6c27ba35b837bc69b8e593a8b57ad2e9ff119d7e22214a84b9798f6f30c3
ripemd-160
b0c31faee88152187a80850f8ec6f7d9f1dbda1a
Diameter
41337678
Circumference
129866145.52126
Area
1.3420912266648E+15
Volume
3.6985956649662E+22
Surface area
5.368364906659E+15
Circumference
129866145.52126
Perimeter
82675356
Area
427200905607921
Diagonal
29230152.432306
Surface area
2563205433647526
Volume
8.8297467386643E+21
Space diagonal
35799479.281461
Perimeter
62006517
Area
1.8498341838809E+14
Altitude
17899739.640731
Surface area
1.8498341838809E+14
Volume
1.0405956325116E+21
Height
9743384.144102